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TRANSFER


D DRIVELINE/AXLE

                                                                                                                                                             A




                                                                                                     SECTION                   TF
                                                                                                                        TRANSFER
                                                                                                                                                             B



                                                                                                                                                             C


                                                                                                                                                             TF


                                                                                                                                                             E
                                                                 CONTENTS
PRECAUTIONS ......................................................... 3 .           AWD CONTROL UNIT INSPECTION TABLE .... 20                       .         F
 Precautions for Supplemental Restraint System                                    CONSULT-II Function (ALL MODE AWD/4WD) .... 22                    .
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                            FUNCTION ......................................................... 22
                                                                                                                                                    .
 SIONER" ................................................................. 3
                                                                        .           CONSULT-II SETTING PROCEDURE ............... 22                 .        G
 Precautions ............................................................. 3
                                                                        .           SELF-DIAG RESULT MODE .............................. 22         .
 Service Notice or Precaution ................................... 4     .           DATA MONITOR MODE ..................................... 24      .
 Wiring Diagrams and Trouble Diagnosis ................. 4              .           ACTIVE TEST MODE ........................................ 25    .
                                                                                                                                                             H
PREPARATION .......................................................... 5.           AWD CONTROL UNIT PART NUMBER ............ 25                    .
 Special Service Tools .............................................. 5 .        TROUBLE DIAGNOSIS FOR SYSTEM ................... 26                .
 Commercial Service Tools ....................................... 7     .         Power Supply Circuit for AWD Control Unit ........... 26          .
NOISE, VIBRATION AND HARSHNESS (NVH)                                                CONSULT-II REFERENCE VALUE IN DATA                                        I
TROUBLESHOOTING ............................................... 8       .           MONITOR MODE ............................................... 26 .
 NVH Troubleshooting Chart .................................... 8       .           DIAGNOSTIC PROCEDURE ............................. 26           .
TRANSFER FLUID .................................................... 9   .         AWD Control Unit .................................................. 27
                                                                                                                                                    .         J
 Replacement ........................................................... 9
                                                                        .           DIAGNOSTIC PROCEDURE ............................. 27           .
   DRAINING ............................................................ 9
                                                                        .         ABS System .......................................................... 27
                                                                                                                                                    .
   FILLING ................................................................ 9
                                                                        .           DIAGNOSTIC PROCEDURE ............................. 27           .
                                                                                                                                                             K
 Inspection ................................................................ 9
                                                                        .         AWD Solenoid ....................................................... 28
                                                                                                                                                    .
   FLUID LEAKAGE AND FLUID LEVEL ................. 9                    .           CONSULT-II REFERENCE VALUE IN DATA
AWD SYSTEM ......................................................... 10 .           MONITOR MODE ............................................... 28 .
 Power Transfer Diagram ....................................... 10      .           DIAGNOSTIC PROCEDURE ............................. 28           .         L
 System Description ............................................... 10  .           COMPONENT INSPECTION ............................. 31           .
   ELECTRIC CONTROLLED COUPLING ............ 10                         .         AWD Actuator Relay .............................................. 31
                                                                                                                                                    .
   AWD CONTROL UNIT ........................................11          .           CONSULT-II REFERENCE VALUE IN DATA                                       M
   SNOW MODE SWITCH ......................................11            .           MONITOR MODE ............................................... 31 .
   AWD WARNING LAMP .......................................11           .           DIAGNOSTIC PROCEDURE ............................. 31           .
 System Diagram .................................................... 12 .         Engine Control Signal ............................................ 32
                                                                                                                                                    .
   CONPONENTS FUNCTION DESCRIPTION ..... 13                             .           DIAGNOSTIC PROCEDURE ............................. 32           .
 CAN Communication ............................................. 13     .         CAN Communication Line ..................................... 32   .
   SYSTEM DESCRIPTION ................................... 13            .           DIAGNOSTIC PROCEDURE ............................. 32           .
TROUBLE DIAGNOSIS ........................................... 14        .         SNOW Mode Switch .............................................. 33.
 Fail-Safe Function ................................................. 14.           CONSULT-II REFERENCE VALUE IN DATA
 How to Perform Trouble Diagnosis ....................... 14            .           MONITOR MODE ............................................... 33 .
   BASIC CONCEPT .............................................. 14      .           DIAGNOSTIC PROCEDURE ............................. 33           .
 Location of Electrical Parts .................................... 15   .           COMPONENT INSPECTION ............................. 36           .
 Circuit Diagram ..................................................... 16
                                                                        .        TROUBLE DIAGNOSIS FOR SYMPTOMS ............. 37                    .
 Wiring Diagram -- AWD -- ................................... 17        .         AWD Warning Lamp Does Not Turn ON When The
 Trouble Diagnosis Chart for Symptoms ................ 20               .         Ignition Switch Is Turned to ON ............................. 37  .
 AWD Control Unit Input/Output Signal Reference                                     DIAGNOSTIC PROCEDURE ............................. 37           .
 Values ................................................................... 20
                                                                        .         AWD Warning Lamp Does Not Turn OFF Several


Edition; 2004 September                                                     TF-1                                                   2005 G35 Sedan
 Seconds after Engine Started ................................ 38        .        FRONT OIL SEAL ....................................................45
                                                                                                                                                     .
   DIAGNOSTIC PROCEDURE ............................. 38                 .         Removal and Installation ........................................45
                                                                                                                                                     .
 AWD Mode Cannot Be Switched after Engine Is                                         REMOVAL ...........................................................45
                                                                                                                                                     .
 Started ................................................................... 40
                                                                         .           INSTALLATION ...................................................45
                                                                                                                                                     .
   DIAGNOSTIC PROCEDURE ............................. 40                 .        REAR OIL SEAL ......................................................46
                                                                                                                                                     .
 Heavy Tight-Corner Braking Symptom Occurs                                         Removal and Installation ........................................46
                                                                                                                                                     .
 When The Vehicle Is Driven in AUTO Mode and The                                     REMOVAL ...........................................................46
                                                                                                                                                     .
 Steering Wheel Is Turned Fully to Either Side after                                 INSTALLATION ...................................................47
                                                                                                                                                     .
 The Engine Is Started ............................................ 41   .        AIR BREATHER HOSE ............................................48   .
   DIAGNOSTIC PROCEDURE ............................. 41                 .         Removal and Installation ........................................48
                                                                                                                                                     .
 Vehicle Does Not Enter AWD Mode Even Though                                      TRANSFER ASSEMBLY ..........................................49     .
 AWD Warning Lamp Turned to OFF ...................... 42                .         Removal and Installation ........................................49
                                                                                                                                                     .
   DIAGNOSTIC PROCEDURE ............................. 42                 .           REMOVAL ...........................................................49
                                                                                                                                                     .
 While Driving, AWD Warning Lamp Flashes Rapidly                                     INSTALLATION ...................................................49
                                                                                                                                                     .
 (When Flashing in Approx. 1 Minute and Then Turn-                                 Disassembly and Assembly ...................................50    .
 ing OFF) ................................................................ 42
                                                                         .           COMPONENTS ..................................................50 .
 While Driving, AWD Warning Lamp Flashes Slowly                                      DISASSEMBLY ...................................................51
                                                                                                                                                     .
 (When Continuing to Flash until Turning Ignition                                    INSPECTION ......................................................56
                                                                                                                                                     .
 Switch OFF) ........................................................... 43
                                                                         .           ASSEMBLY .........................................................57
                                                                                                                                                     .
   DIAGNOSTIC PROCEDURE ............................. 43                 .        SERVICE DATA AND SPECIFICATIONS (SDS) .....64                      .
AWD CONTROL UNIT ............................................. 44        .         General Specifications ...........................................64
                                                                                                                                                     .
 Removal and Installation ....................................... 44     .
   REMOVAL .......................................................... 44 .
   INSTALLATION ................................................... 44   .




Edition; 2004 September                                                      TF-2                                                   2005 G35 Sedan
                                             PRECAUTIONS

PRECAUTIONS                                                         PFP:00001
                                                                                                                        A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                          ADS000Y5


The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:                                                                                                             TF
q    To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
     in the event of a collision which would result in air bag inflation, all maintenance must be per-
     formed by an authorized NISSAN/INFINITI dealer.                                                                  E
q    Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
     sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
     Bag Module, see the SRS section.                                                                                 F
q    Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
     Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
     harness connectors.
                                                                                                                      G
Precautions                                                                                                  ADS000X1


q   Before connecting or disconnecting the AWD control unit
    harness connector, turn ignition switch "OFF" and discon-                                                           H
    nect battery ground cable. Because battery voltage is
    applied to AWD control unit even if ignition switch is turned
    "OFF".                                                                                                              I


                                                                                                                        J


                                                                                                          SEF289H
                                                                                                                        K
q   When connecting or disconnecting pin connectors into or
    from AWD control unit, take care not to damage pin termi-
    nals (bend or break).                                                                                               L
    When connecting pin connectors, make sure that there are
    no bends or breaks on AWD control unit pin terminal.
                                                                                                                        M




                                                                                                          SEF291H



q   Before replacing AWD control unit, perform AWD control
    unit input/output signal inspection and make sure whether
    AWD control unit functions properly or not. Refer to TF-20,
    "AWD Control Unit Input/Output Signal Reference Values" .




                                                                                                          SDIA1848E




Edition; 2004 September                              TF-3                                       2005 G35 Sedan
                                            PRECAUTIONS

Service Notice or Precaution                                                                              ADS000X2


q   Do not reuse transfer fluid, once it has been drained.
q   Check the fluid level or replace the fluid only with the vehicle parked on level ground.
q   During removal or installation, keep inside of transfer clear of dust or dirt.
q   Replace all tires at the same time. Always use tires of the proper size and the same brand and pattern.
    Fitting improper size and unusual wear tires applies excessive force to vehicle mechanism and can cause
    longitudinal vibration.
q   Disassembly should be done in a clean work area, it is preferable to work in dust proof area.
q   Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal
    parts from becoming contaminated by dirt or other foreign matter.
q   All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
    reassembly.
q   Check for the correct installation status prior to removal or disassembly. If matching marks are required,
    be certain they do not interfere with the function of the parts when applied.
q   Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
    with a new ones if necessary.
q   Gaskets, seals and O-rings should be replaced any time when the transfer is disassembled.
q   In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
    tightening sequence is specified, use it.
q   Observe the specified torque when assembling.
q   Clean and flush the parts sufficiently and blow-dry them.
q   Be careful not to damage sliding surfaces and mating surfaces.
q   Clean innerparts with lint-free cloth or towels. Do not use cotton work gloves and rags to prevent adhering
    fibers.
Wiring Diagrams and Trouble Diagnosis                                                                     ADS000X3


When reading wiring diagrams, refer to the following:
q  GI-14, "How to Read Wiring Diagrams".
q  PG-3, "POWER SUPPLY ROUTING CIRCUIT".
When performing trouble diagnosis, refer to the following:
q  GI-10, "How to Follow Trouble Diagnoses".
q  GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident".




Edition; 2004 September                             TF-4                                       2005 G35 Sedan
                                                       PREPARATION

PREPARATION                                                                                                                    PFP:00002
                                                                                                                                             A
Special Service Tools                                                                                                             ADS000X4

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
  Tool number                                                                                                                                B
  (Kent-Moore No.)                                                                       Description
  Tool name

  ST27862000                                                                             q   Installing front oil seal
                                                                                                                                             C
  (     --   )
  Drift
  a: 62.5 mm (2.461 in) dia.
  b: 42 mm (1.65 in) dia.                                                                                                                    TF

                                                                        ZZA0194D


  KV381054S0                                                                             q   Removing rear oil seal
                                                                                                                                             E
  (J-34286)
  Puller
                                                                                                                                              F


                                                                        ZZA0601D
                                                                                                                                             G
  ST30720000                                                                             q   Installing rear oil seal
  (J-25405)                                                                              q   Installing mainshaft oil seal
  Drift
                                                                                                                                             H
  a: 77 mm (3.03 in) dia.
  b: 55.5 mm (2.185 in) dia.

                                                                                                                                              I
                                                                        ZZA0811D


  KV40104830                                                                             q   Installing rear oil seal
  (     --   )
  Drift                                                                                                                                       J
  a: 70 mm (2.76 in) dia.
  b: 63.5 mm (2.500 in) dia.
                                                                                                                                             K
                                                                        ZZA1003D


  KV38100300                                                                             q   Removing mainshaft bearing
  (J-25523)                                                                                                                                   L
  Drift
  a: 54 mm (2.13 in) dia.
  b: 46 mm (1.81 in) dia.
  c: 32 mm (1.26 in) dia.
                                                                                                                                             M

                                                                        ZZA1046D


  ST33052000                                                                             q   Removing mainshaft assembly
  (     --   )
  Drift
  a: 28 mm (1.10 in) dia.
  b: 22 mm (0.87 in) dia.


                                                                        ZZA1000D


  ST30611000                                                                             q   Removing rear bearing
  (J-25742-1)
  Drift bar
  a: 350 mm (1.10 in)
  b: 25 mm (1.10 in) dia.
  c: M12 



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